Headlight and switch



Oct. 18, l1932. J. s. BELTZ y 1,882,745

HEADLIGHT AND SWITCH Filed July 1, 1930 NVENTOR Patented -Oc't. 18,1932 y UNITED; STATES mwaNTy ori-TICE JOHN s. BnLrz, oF CoIiUMBUs, CHIQASSIGNOB To THE JEFFREY MANUFACTURING CoM` Y PANY, oF COLUMBUS, oHIo, A CORPORATION or `o IIIo IIEADLICIIT AND swIrCII y Application med ,Iulv r1 In mine equipment of permissibletype, all electrical apparatus must befpositioned or housed within flame-proof compartments.

In the arrangementl ofswitches for the conwith this combination that the present invention is concerned. l

In the accompanying drawing, which 1s illustrative of the invention f Figure 1 is a sectional view of an explosionl proof housing equipped with illummatmg means and a switch according to the present invention, and

Figure 2 is a plan view of the housing. As a matter of convenience, I have chosen to illustrate the new combination in connection with the structure 'shown in United States Patent 1,662,118, Nils D. Levin, March 13, 1928. According to this patent, an auxiliary socket holder is provided. Ac-

"' cording to the present invention, this socket holder is omitted, and the space thus vacated is occupied by a switch and switch supporting means. In view of the disclosure of the patent, it will be unnecessary to describe specifically the general arrangement of parts.

Referring to the drawing of the present application, reference numeral indicates generally a housing resiliently supported on a base 11. The housing 10 is provided with a reflector chamber 12, to the rear of Which is a second chamber 13 adapted to receive the switch 14. A lugl and yoke 16, at the bottom of the chamber 13, clampingly receive a split ring 17, in which is engaged a socket 18, which supports a lamp 19 in proper relation to a reflector 20. Reflectorf20 is mounted in a horizontally presented light opening 21 of housing 10, the opening being closed by a transparent closure element 22. Chamber 13 is accessible through an open- 1930.` Serial No. 465,210.

'ing which is normally closed by means of a provided at its inner end with prongs 27 and l, at its outer end with a knob 28. It will be ,noted that the inner end of shaft 26 is radially expanded, this expanded portion cooperating withj knob 28 to preventaxial displacement ofthe shaft relativev toclosure elementk 23 while permitting rotativemovements of the shaft. l

Switch 14 may conveniently take the form of an ordinary snap-switch, and is mounted on la bracket 29 which issecured to the housing wall by means Yof rivets 30. Switch 14 `comprises a rotatable element 31 surmounted by a button 32 having radial wings. Switch 14 is so arranged relative to shaft 26 as to position rotatable element 31 substantially coaxially with the latter, with the button engaged between prongs ,27. when closure element 23 is` screwed into closing position. Prongs 27 form a flexible coupling with but- .ton 32, which kcoupling is adapted to transmit rotative movements of shaft 26l to rotatable switch element 31 to operate the latter.

Closure element 23 is provided exteriorly with a number of radial 'ribs 33 provided withapertures 34. The transparent closure element is mountedin a sleeve 35 provided with a number of radial apertures 36. To ensure the housing against unauthorized opening links 37 and 38 are secured in adjacent apertures 34 and 36 at the top. of the housing, which links are .adapted vto be connected by a padlock hasp` 39, this single instrumentality serving to lock the closure ele- `ments tothe housing.

` It will be understoodthat, while I have shown and described a specic embodiment of my`invention, I do 'not limit myself to structure except as in thefollowing claims.

I claim: Y

., 1. The combinationwith a housing, of a loo switch disposed within the housing, and an exteriorly and interiorly projecting switch operator mounted in aremovable portion of the housing and removable therewith vwithout disturbing the switch.

2. The combination with a housing, of a switch disposed within the housing and comprising a rotatableelement, an operator for said rotatable element comprising an exteriorly and interiorly projecting rotatable shaft journaled in a removableV portion of the housing and removable therewith, and disengageable means forcoupling said` shaft and rotatable element to transmit rotative movements vof the former to the latter.

3. The combination with ahousing, of a switch disposedwithin the housing and coniprising a rotatable element, anzoperator for said rotatable element comprising an exteriorly and 'interiorly projecting rotatable shaft journaledin a removable portion of the housing and removable therewith, said shaft being substantially coaxial with said rotatable element, and means for coupling said shaft and rotatable element to transmit rotative movements of the former to the latter.

l. The combination with a housing, of a switch disposed within the housing and comprising a rotatable element, anoperator for said rotatable Velement. comprising an exte-Y -riorly and interioily projecting rotatable shaft journaled in a removable portion of the housing and removable therewith, said shaft being substantially coaxial with said rotatable element, and means for flexibly coupling said shaft and rotatable element to transmit rotative movements of the former to the latter.

5. The combination with a housing, of a lar closure element disengageably threaded in the other opening, the combination of a switchV disposed with the housing and comprising a rotatable element coaxial with said circular opening, an exteriorly and interiorly projecting shaft journaled in said circular closure element in coaxial relation to said rotatable element, means retaining said shaft against axial displacement relative to said circular closure element, and disengageable means for coupling the inner end of the shaft and said rotatable element whereby rotation of the former may be transmitted to the latter.

8( The combination with a housing having a removable cover portion, of a switch disposediwithin the housing, and a switch op- .erator carried by said cover portion in op- Y verative'relation to the switch when the cover JOHN S. BELTZ.

V-rny hand.

switch disposed within the housing and comprising a rotatable button, an exteriorly and interiorly projecting rotatable shaft journaled in a removable portion of the housing 1 and removable therewith, said shaft being substantially 'coaxial with the axis of rotation of said button, and prongs on the interior end of said shaft engaging said button to transmit rotational movements of the shaft to the button.

6. In an explosion-proof housing for an electric lamp, said housing being provided with a pair of openings, transparent closure means for one of said openings and a circular closure element diseiigageably threaded. in the other opening, the combination of a switch disposed within the housing, an operator for the switch supported byk said eircular closure element and manipulatable f from the exterior of the casing, and a disengageable operating connection between the operator and switch. u

7'. In an explosion-proof housing for an electric lamp, said' housing being provided with a pair of openings, transparent closure means for one of'said openings and, a, circu- 

